Ride height is one way. Also looking at the shock body and getting the part # will tell you.

There are other things too, but they don't always tell the tale. Round airbag steering wheel is one way to tell as is sport seats and the 5 spoke ///M badged wheels.

Thanks. How can I evaluate ride height? What do I compare it to? Also, is the PN on the upper or lower part of the shock body?

I have the sport package which includes the M (5) double spoke alloy wheels, performance tires, adjustable front sport seats, aerodynamic package and leather sport steering wheel. These are all listed under the Sport Package listing. As I mentioned earlier, "sport suspension" is listed under Standard Features.